A little history on this engine. The 215 Buick was introduced in 1960 and ended production in 63. In 65 Rover bought the rights and began using this engine in the Land Rover and still use it to this day. Designed to be a lightweight economy engine, two versions were avaliable. The Buick and the Oldsmobile (Pontiac used the Olds version).
This particular engine uses a Rover Block, Olds heads and a Buick 300 crank, yielding 294 C.I. Custom adapters built by the owner allows the use of Ford valve covers. The Crane camshaft is 224/234@.050" Lift .494 - .520 with 110 lobe seperation.